Duolingo: Language Lessons vs Study Buddy (Private Pilot)
A data-backed head-to-head — estimated revenue, downloads, ratings and pricing side by side, from live App Store signals. Updated continuously.
Revenue / mo
$24M–$98M
$3k–$11k
Downloads / mo
3.5M–15M
200–1k
Rating
★ 4.73 (46M)
★ 4.24 (143)
Pricing
Free + IAP
Paid $14.99
Category
Education
Education
Released
13.1y ago
15.3y ago
Verdict: Duolingo: Language Lessons earns more — an estimated $24M–$98M/mo, versus $3k–$11k/mo for Study Buddy (Private Pilot).